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Sustainability 2017, 9(8), 1401; doi:10.3390/su9081401

Characterizing the Air Temperature Drop in Mediterranean Courtyards from Monitoring Campaigns

1
Departamento de Máquinas y Motores Térmicos, Universidad de Cádiz, 11001 Cádiz, Spain
2
Grupo de Termotecnia, Universidad de Sevilla, 41004 Sevilla, Spain
3
Departamento de Ingeniería Mecánica y Diseño Industrial, Universidad de Cádiz, 11001 Cádiz, Spain
*
Author to whom correspondence should be addressed.
Received: 26 July 2017 / Revised: 4 August 2017 / Accepted: 4 August 2017 / Published: 9 August 2017
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Abstract

As microclimate modifiers, courtyards may be a good passive strategy for enhancing thermal comfort and reducing the energy demands of buildings. Thus, it is necessary to be able to quantify their tempering effect in dominant summer climates. This is frequently done using calculation methods based on CFD, but these have the drawback of their high computational cost and complexity, so their use is limited to advanced users with a high level of knowledge. Thus, an alternative is required based on a simplified method that can explain and predict the air temperature drop in courtyards. This would be extremely useful for professionals looking for the optimal design of this kind of space through energy assessment programs integrating these methods. This study proposes a simplified method of characterization that aims to identify the functional dependencies of the decrease in air temperatures in courtyards, and so to predict the air temperature inside them from that outside, if available. From the results of several experimental campaigns, three variables have been identified that characterize the decrease in the air temperature in courtyards, all of which depend on the confinement factor of the courtyard. Finally, the proposed predictive method was validated by means of an additional monitoring campaign. The results show a good fit of the calculated values to the measured ones, R2 being equal to 0.98. View Full-Text
Keywords: mediterranean courtyard; courtyard microclimate; simplified predicting model; courtyard design; field measurements mediterranean courtyard; courtyard microclimate; simplified predicting model; courtyard design; field measurements
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MDPI and ACS Style

Rodríguez Jara, E.Á.; Sánchez de la Flor, F.J.; Álvarez Domínguez, S.; Salmerón Lissén, J.M.; Rincón Casado, A. Characterizing the Air Temperature Drop in Mediterranean Courtyards from Monitoring Campaigns. Sustainability 2017, 9, 1401.

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